On a full frame this is a total fave FL for me. This lens is very sharp, but really saturates greens in high contrast scenes. It's easy to correct a raw image, but jpg's don't recover so well. CA is high but easy to fix. Overall it's wonderful. This and my 85 1.8G and I'm happy 90% of the time.
The comment from Nikonover; I was a DX shooter for sometime, last one was D7100. The 1.4 and 1.8 lenses don't do well at all with DX sensors. Wide open they take on a life of their own, and it's ugly. I shot all the 1.4's and 1.8's. I bought the 1.8's when I upgraded to a D610 and they are spectacular. Don't know why, just know that big apertures and small sensors don't work well together.